EBRO 2017

Segmentation of PET signal: which method?

Result of target volume definition is dependent on segmentation method:

CT: GTV - CT 47.5 cm 3 ( red )

PET: GTV - visual

visual

43.8 cm 3 ( green ) 20.1 cm 3 ( yellow ) 32.6 cm 3 ( orange ) 15.7 cm 3 ( blue )

GTV GTV GTV

40%

semi- automatic

SUV

SBR

Schinagl, Int J Radiat Oncol Biol Phys 2007